Nature 583 (7816), 441446
By following these guidelines, healthcare providers can make sure patients get the right amount of vitamin B12
Theyre essential for obtaining energy, regulating hormones, forming red blood cells, breaking down blood sugar, metabolizing food, growing skin, hair, and nails, and promoting cell growth
Over the last several years, vitamin B12 injections have become popular among healthy people who do not appear to have a deficiency
Not shown on the list because they are strictly oral are the collagen peptides which are widely marketed and not-FDA approved